Display unit

1. A display unit comprising: a main body section including a first front surface, a first rear surface, and a first side surface; one or a plurality of speaker boxes each including one or a plurality of speaker units and a housing containing the one or a plurality of speaker units, the one or a plurality of speaker boxes being selectively attachable with respect to the main body section so to contact one of the first side surface or the first rear surface in the main body section; and one or a plurality of attaching members commonly used for both at the time of attaching the one or a plurality of speaker boxes to the first side surface and at the time of attaching the one or a plurality of speaker boxes to the first rear surface, each attaching member having a first connection section includes a first member screw hole and a second member screw hole, and a second connection section includes a third member screw hole, the first and the second connection section arranged perpendicular to each other such that said each attaching member has an L shape when viewed from a side thereof, and each said first connection section and each said second connection section having a rectangular cross sectional shape, and each said housing having a housing front surface from which sound is to be output, a housing rear surface which is opposite the front surface, and an upper housing side surface and a lower housing side surface, in which each said housing front surface, said housing rear surface, said upper housing side surface and said lower housing side surface extending in a longitudinal direction, and each said housing having one rectangular-shaped first attaching hole on the rear surface, one rectangular-shaped second attaching hole on the upper housing side surface, and at least one screw hole on the same housing side surface of said first attaching hole or said second attaching hole, each said first attaching hole or said second attaching hole is close ended with one opening for receiving the L shape attaching member.

2. The display unit according to claim 1 , wherein the first connection section being used for both connection with the main body section side and connection with a speaker box side, and the second connection section being selectively used for connecting with the speaker box side.

3. The display unit according to claim 1 , wherein the first rear surface in the main body section is provided with one or a plurality of first main body screw holes and one or a plurality of second main body screw holes, the first main body screw hole being selectively used for attachment to the first rear surface, and the second main body screw hole being selectively used for attachment to the first side surface.

4. The display unit according to claim 1 , wherein the main body section is formed by using a plurality of liquid crystal display devices or a plurality of organic EL display devices.

5. The display unit according to claim 2 , wherein as the holes used for attachment to the main body section, one or a plurality of the first attaching holes and one or a plurality of first speaker screw holes are provided in the housing rear surface, and as the holes used for attachment to the main body section, one or a plurality of the second attaching holes and one or a plurality of second speaker screw holes are provided in the one or the plurality of housing side surfaces.

6. The display unit according to claim 5 , wherein the first rear surface in the main body section is provided with one or a plurality of first main body screw holes and one or a plurality of second main body screw holes, the one or the plurality of first main body screw holes being selectively used for attachment to the first rear surface, and the one or the plurality of second main body screw holes being selectively used for attachment to the first side surface.

7. The display unit according to claim 6 , wherein in attaching the speaker box to the first side surface by contacting the first side surface with the housing rear surface, screw-tightening is made by using the first member screw hole and the second main body screw hole, and thereby the first rear surface in the main body section and the first connection section are connected with each other, screw-tightening is made by using the second member screw hole and the second speaker screw hole, and thereby the speaker box and the first connection section are connected with each other, and the second connection section is inserted into the second attaching hole, and thereby the speaker box and the second connection section are connected with each other.

8. The display unit according to claim 6 , wherein in attaching the speaker box to the first side surface, screw-tightening is made by using the first member screw hole and the second main body screw hole, and thereby the first rear surface in the main body section and the first connection section are connected with each other, screw-tightening is made by using the second member screw hole and the first speaker screw hole, and thereby the speaker box and the first connection section are connected with each other, and the second connection section is inserted into the first attaching hole, and thereby the speaker box and the second connection section are connected with each other.

9. The display unit according to claim 6 , wherein in attaching the speaker box to the first rear surface, screw-tightening is made by using the first member screw hole and the first main body screw hole, and thereby the first rear surface in the main body section and the first connection section are connected with each other, and screw-tightening is made by using the third member screw hole and the first attaching hole, and thereby the speaker box and the second connection section are connected with each other.